Hand brake



Feb. 2), 1923. 1,446,203 J. F. o'coNNoR HAND BRAKE Filed Apr. 5, 1919 .3 fig! T Fg.;

. ff Zi q \f 35 mln Z J4 l 1 i I 11| 24 JOHN r.' ooornron1 or cnrclieo, rumors," nssreNoi-r fr onlinr, New Yoan.

, remet o WILLIAM n. Minnie; or i R i-v i kHAND BRAKE.,

Application filed April 3,

To @ZZ whom inni/concern.' M f i 1 Be it known that I, loi-1N @CONN/on, a `citizen ofthe United States, residing at Chicago, in the county of Cook` and State of Illinois, have invented a certain nevfand useful Improvement in Hand Brakes, yof Which the following is a full, clear, concise, and exact description5 reference beingrli; d to the accompanying` drawings, forming part of this specification.

This invention relates to hand brakes. i v The object of the invention is to provide an efficient hand brake for freight or` pas. eenger cars wherein the chain tightening operation is effected by a ratcheting mecha# In the drawingy forming' appart of this specification, Figure 1 isan elevational vl. v of a brake showing myimprovements in Connection therewith,` parte` being' broken avvay in order to lprevent croWding oiE the drawing. Fig. 2 isa vertical', sectional view taken substantially on` the/line 2 2 of Iii 1. And Figs. 3 and 4 are horizontal, secan d A-jl-ili,

improvements inv tional vievvs taken on the lines 3 3 respectively, of Fig. 2. i

In said drawing, 10,indicates car to which the mounting' for my improved, brake is attached. i The brakey shown :is employed with avertical brakessaif 11hai ing a squared or other non-circular section 12; at its upper end. Mounted on` the squared section 12 is a sleeve. 13 i erably an outer surface of hexagonal cross section. Mounted on `the sleeve 13 ratchet Wheel llliavingla depending 15 tting the exterior ofthe sleeve 13.

a Wall of a Till?. two sleeves 13 and'ljare attached to the stad` 11v so as to prevent accidental removal therefrom'by means of a pin 16 which passes` through a vertically elongated slot in. the staff, the slot 17 permittingl a vertical movement of the sleeves 13 and. for the purpose hereinafter described.

The exterior of the sleeve 15 is circular in formv and is adapted to act as a. jour .l for the upper end ofthe staff 11. the bearing rgfor heine` provided by a boss 117 carried by a bracket 18 which is secured to the Wall 10. As Will be understood, the/boss 117 is provided with a suitable. bearing' surface 19 for thesleeve 15. Onits upper face, the boss 117 is provided with a series of ratchet teeth indicated at 20.;` Cooperable hired, are-teeth'21 on the kunder 1919.` sei-reino. 267.175.

With the ratchet teeth20which are obviously .face of the. ratchet Wheel 14. The teeth 2O and 21 are so arranged as to prevent rotation of-.the staff `11 ina lcounterclockwi'se direction as l viewed 'in Figs. 3 and 4, in other Words, to. prevent release of the. staff after` the chain has been tightened thereon.` As will benoted from an inspection of Fig. 2, Vthe ratchet Wheely le is recessed above the top 'of the staff 'as indicated at 22, said s recess providing a circular bearing an; annular flange 23, formed on the lowerend ofa vertically extending stem. or plunger 21.15 Which passes up through the top of the ratchet Wheel 14 into ay hollow handle 25 carriedv by another bracket member 2,6. ivlfriirilgi is also secured to the Wall 10.-` lThe stein 24. is of circular cross' sectionl and forms` a bem:` ing for an escilisting:pavvlv element 2.,; paivl e1ement27 has preferably apl ofradially extending teeth 2S on `i g l' which cooperate with facci-responding n ratchetteeth 29 `formedon the `upinlr faceV of the ratchet Wheel 11i. `The.pawl member 2? is preferably provided with, ai depending` i annular tienne BO- telescopedover the ratchet Wheel 1d- 'and forniiing a suitable. housing. to i prerent dirt orfother foreiginmatter getting in between the teeth 28 and 29. f

. To effect the oscillation of the. paivlmenr. ben2, I- provide a handle pivoted to said parel `member as by a bolt 32, the bolt 32 ztendinfr horizorniallyY so that the handle llwvill fallv toa dependingvertical. inope rive position under the influence of K f .i will be understood. the handle S1 is elcvated to a horizontal position whenV the ratchetin n is vto be effected. The pavvl meniber l .an upstanding circular' flange 33 within a correspoi lingA 'eccss 35% wh ich if `hirmed `in the lower `end of the liandle 125,

ment beinel suchtl'nit the ivl v be elevated or additiomilly within, `the recess fl-:if as will be evident-prom an inspection of Fig. 2Q. i As the errang;

nien er i rvill he understood. `the teeth and 25) are :i1-range! in the opposite of the teetlr20 nd 2 To tighten th h he chain, the operator lifts the handle 1 to its horizontal positiver and oscillates or pulls the/saine t vf direction to .that

ard himselfso as to rotate the siaffina, clocltwiise directii i. Duringthis movement the teeth 28 and 29.Will lock' and positively rotate chain. f

lmovement the teeth the ratchetwheel 14 Which in turn Willcause rot-ation ot the stati il. During this action the teeth 2l ot the ratchet Wheel will slip over the' teeth 20 oit the xed ratchet. At they end of the stroke, reverse rotation ot the staff` is prevented due to the lockingengagement of the teeth and 2l' and the brakeman .tlien swings the handle 3l in a counterclockivise direction during which l 1 l 28 will 'slip over the teeth This operation is repeated untily the desiredtension fis placedupon the brake To eiiect release ot jtheistaii, l. employ the Jfollowing lai"rangeri'ient:Y Pivotally ats tachedto the upper bracket 26 lis a level-'85 which extends through suitable slots in the hollow handle and in the `stem 24; The normal position ot the lever is as vindicated in Figs.r land 2, that is, when the stem 24: is inits lowermost position. Vhen the brakeman `desires to release the stati, the lever is lifted which in turn'will litt the `paWl member 27 as shown in Fig. 2'. f

stem 24. Carried bythe stein 2e is a transversely extending lkey 36 which engages the onsequently,fasthe stem 24 is elevated, the pavvl member 27 will be'litted out of en gag tinued elevation ot ythe stem 24. Will'result in the flange 23 at the lower end thereoit l engaging the ratchet Wheel le and ultimately the lattervvill be liftedso 'as to' disengage the teeth 21 thereof from the teeth 2O ot the fixed ratchet, whereupon the ratchet Wheel '14C `and staff are tree to rotate in a reverse direction. lt Willfbe noted that in effecting the release, the teeth 28 and 29 are first disengaged, theobject otthis being to insure that the operating handle 31 is entirely free and cannot be suddenly thrown around so as to strike and injure the brakeman. The parts will, ot course, tall back l' into their operative condition under the influence of gravity, vupon release ot the lever I claim:

i 1. In ahand brake, the combination with a brakestafl', or" a Wheel rotatable in unison therewith, said Wheel having tivo sets of ratchet teeth; and-an immovable .ratchet Wheel coo'perable with one of said sets ot ratchet teeth, another ratchet Wheel 'oscillatable with respect tothe stabil? and cooperable with the other ot said sets oit ratchet teeth, means ttor oscillating` the last named e ratchet Wheel, and means for disengaging said ratchet Wheels and sets oit ratchet-teeth to permit release `ot thestffi'.`

ln ya handbrake, the combination with a brake statig, or a pair of ,cooperating ratchet wheels, lone of'ivhich is heldagainst movement in all directionsand the other rotatable in unison With thestatf and together adapted to lock the stad against roement with the ratchet teeth 29.I Cony tation in an unwinding direction, a second pair ot .cooperating ratcheting elements, one ot. which is rotatable inpunison With the stallE andthe other oscillata'ble With respect thereto, means t'or manually oscillating said last named element .toeiect rotation ot said y stati in a direction to Wind the chain, and

devices separatefrom said ratchet Wheels,

for rendering inoperative said ratchet Wheels and said ratchet.

' 3. ln a'hand brake, thecoinbination with a brake stati, ot a pair ot' cooperating ratchet Wheels, one otwhicli is immovably lined, andthe other rotatable in unison With the stati and together adapted to .lock the stati' against rotation .in an untvinding direction, av second pair of cooperating ratcheting elements, .one or which'is rotat. able in unison With the staff and the" other oscillatable With r'respect thereto, means tor manually oscillating said last. named element to eect rotation ot said stall' in a direction to Wind the chain, and devices separate from said ratchet Wheels tirstfrendering inoperative kthe elements ot the second mentionedpair ot cooperatingratchet elements and thereafterl the first vmentioned pair ot ratchet Wheels,`said devices being manually operable andA entirely separate "troni 'said Ll. ln a brake for railway cars andthe like; the combination Wit-h a vertical brake staff; of a ratchetA Wheel rotatable therewith; means tor locking said stai? against rotation in an univinding direction, said means andv said ratchet Wheel being vrelatively movable toivai'd and away from each other to effect the locking `andr unlocking of said staff ;a paWl member oscillatable with respect'to said stall and cooperablelvvith said ratchet-..wlie`elto effect rotation of the sta in achainvinding direction; a lianfdle for effecting oscillation. ci said paivl member; a device movable relative to'sa'id means tor disengaging the p'aivl troni the ratchet Wheel; aser-ond deviizealsovniovable relative tosaid meansjor disengaginf'ir .fthe ratchet Wheeland locking means; and operating means so connected `,to both'o'it said devices as to render the saifddevices' opera tively effective in sequence.;

fln a hand brake ot the character described,i the combination with a" vertical brake stati, ot af ratchetv Wheel: slidably niiiiinted on said statt but rotatable in unison therewith, said ratchet Wheel having a set et ratchet teeth on its upper tace and also a set oit ratchet teeth on itsrunder tace. a iixed ratchet coopera-ble v-with the ratchet teeth on the undery face of said ratchet Wneel. a pawl memberv'oscillatable with respect 'to the statt and coopera-ble' With the ratchet teeth on the upper face ot said ratchet Wheel, a

gravity drop "handle for Vetllecting oscilla- `tion of said pawl member, and a vertically movable releasing stem, said vstem having s shouldered engagement with the paivl mem`n ber and the ratchet Wheel and adapted to elevate the same until the ratchet teeth on the under face oi" the ratchet Wheel are disengaged from` the fixed ratchet.

6. ln a hand brake of' the character described, the combination with a vertical brake staff, of a bracket adapted to be secured to a wall, a ratchet Wheel rotatable in unison with said stati but slidable ver tically with respect thereto, said ratchet Wheel having a set of ratchet teeth on its upper face and another set of ratchet teeth on, its under face, ratchet teeth cariied by said bracket and adapted to cooperate With the ratchet teeth onthe under face of the ratchet wheel to lock the latter and the staff against rotation in an univinding direction, a paWl member oscillatable With respect to the statt and cooperable withthe ratchet teeth on the upper tace orp the ratchet Wheel, means for oscillating said paivl member, a stem in alinement with tlie staff, lmeans for elevating said stem, and cooperating sets of shoulders on the stem and paivl member and` on the stem and ratchet Wheel,` the first mentioned set of cooperating shoulders be# ing normally in engagement and the second named set of shoulders being normally separated Whereby, upon elevation oi said stem, the paivl member is `first disengaged from the ratchet Wheel and thereafterv the ratchet ivheel is disengaged fromthe fired ratchet teeth carried by the bracket.

7. In a hand brake, the combination with a brake staff of a. wheel rotatablein unison therewith, said Wheel having' a set of ratchet teeth on its upper face and a rset of lratchet teeth on its under-fa'ce; a relatively xed ratchet Wheel cooperable ivith one of said sets of ratchet teeth; another `ratchet Wheel oscillatable with respect to the stall' and cooperable with the other of `said sets of ratchet teeth; means oscillating the last named ratchet Wheel, and means tor disengaging all of said ratchet wheels and sets of' ratchet teeth to permitrelease of the staff.

8. ln a brake, the combination with a, brake statt of a pair of cooperatingr ratchet wheels, one of which is immovably fixed and the other rotatable .in unison with the staff` and together adapted to lock the staff against rotation in an univinding direction, a second pair of co-operating ratchet elements. one olE which is rotatable in unison lwith the stafil and the other `oscillatable with respect thereto; means for manually oscillating said last named element to eit-` fect rotation of said stall in a direction to Wind the chain; and simultaneously operated interconnected devices sequentially effective for first renderinginoperative the. elements` of the second mentioned pair of co-operating ratchet elements and thereafter the first mentioned pair of ratchet Wheels, said devices being manually operable and entirely separate from saidmeans.

9; ln a brake for railway cars and the like; the combination with a vertical brake lstaff; of a` ratchet Wheel rotatable therewith; means for locking said staiil against rotation in an univinding direction, said means `and said ratchet Wheel being relatively `movable toward and from each other to effect thelocking and unlocking otsaid staff; a paivl member oscillatable with respect to said staff and cooperable with said ratchet Wheel to effect rotation of the` staff ina chain Winding direction; a handle Afor effecting oscillation ot' said paivl member;

vand means for sucessively rendering inoperative said paivl member and locking means `compiisinga pair of devices, both movable relative to said means, and mechanism directly operating each of said devices to render effective first one `of said devices to disengage said pai/vl from the ratchet Wheel and to render effective thereafter the other ot said devices to disengage said ratchet y"wheel and locking means.

l0. ln a brake for railway cars and the like; the combination with a vertical brake sta; of relatively movable ratchet and ratchet locking elements, one of said elements having an abutment member thereon,

said ratchet element being rotatable With said stadia and said locking elementv normally retaining said staff againstrotation in an univinding direction; a paivl member oscillatable with reference to said stail-l and cooperable `with said ratchet Wheel to effect rotation of said stafl in a chain Winding direction, said paivl member having an abutment face thereon arranged in spaced y f relation to said abutment member; a han` dle 'for effecting oscillation of said paivl member; and movable means carrying devices adapted to engage with said paivl member and said abutment, said devices being spaced apart a distance greater than the i space betivee said abutment face and said. abutment member, when the pawl and locking devices are operative, whereby, when `saidmovable member is operated, the paivl and locking means :i rerendered successively inoperative. y y o ln Witness `that l claim` the foregoing l have hereunto subscribed in vname this 39th day of March, i919.k

` Molilli l?. OlCNNOlE. 

